Lighting question - Equipment - Aquatic Plant Central

Go Back   Aquatic Plant Central > General Interest Forums > Equipment

Equipment Aquarium Equipment - Discuss equipment to help setup your planted aquarium.

Reply
 
LinkBack Thread Tools Display Modes
Old 12-30-2017, 10:16 AM   #1 (permalink)
Junior Member
 
Join Date: Nov 2017
Posts: 8
iTrader Ratings: 0
generalzod34 is a regular member
Default Lighting question

Hi all, wondering if I have to much light on my 29 gallon tank. I currently have a finnex 24/7 planted Plus only used on max light and I also have a fluorescent light fixture with two 17w aqueon t8 daylight bulbs, these are on a timer set for 4 on 4 off 4 on 12 off. Pressurized Co2, PPS pro fertilization daily, plants kept, dwarf sag,
cryptocoryne parva, S.repens, Anubias nana, jungle Val, myrio green, Hygrophila salicifolia, and Vesuvius sword.

Thanks
generalzod34 is offline   Reply With Quote

Advertisement [Remove Advertisement]
Old 12-30-2017, 11:59 AM   #2 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,859
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Lighting question

One Planted Plus light will give you about 60-65 PAR at the substrate level. That is high light, or possibly high medium light. In either case it is plenty of light to grow all of the plants you have. You need a relatively high CO2 level to use that much light and not have lots of algae problems.

How are you adjusting your CO2 bubble rate? You need around 30-40 ppm of CO2 for that much light. You can measure how much you have, with enough accuracy, by measuring the pH of the tank water after the CO2 is off for about 12 or more hours. Then measure the pH after the CO2 is on for at least 3 hours. The ppm of CO2 will be about 3 times 10 raised to the drop in pH power. For example, if the pH drops from 7.0 to 6.0 with the CO2 on, you would have about 3 x 10 to the first power, or 30 ppm. If it drops from 7.0 to 6.2, you would have about 20 ppm, and if it drops from 7.0 to about 5.8, you would have about 45 ppm.

In my opinion the PPS method for dosing fertilizers isn't the best for high light tanks. Much better is the EI method - https://www.aquaticplantcentral.com/f...ing-guide.html
hoppycalif is offline   Reply With Quote
Old 12-30-2017, 04:38 PM   #3 (permalink)
Junior Member
 
Join Date: Nov 2017
Posts: 8
iTrader Ratings: 0
generalzod34 is a regular member
Default

I tried to search for par on the finnex 24/7 planted Plus and found many different answers, some low light, some low-med light so idk, the light is 18Ē above the substrate, also the EI method I did look into that but Iím not to hip on 50% weekly water changes because I do not use tap water.
generalzod34 is offline   Reply With Quote
 
Old 12-30-2017, 07:54 PM   #4 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,859
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Lighting question



This is how I estimated the PAR from your 30 inch long Planted Plus light, at 18 inches from the substrate.
hoppycalif is offline   Reply With Quote
Old 12-30-2017, 10:27 PM   #5 (permalink)
Junior Member
 
Join Date: Nov 2017
Posts: 8
iTrader Ratings: 0
generalzod34 is a regular member
Default

Oh sweet! I never seen that chart, so Iím at 60 par with the planted + 24/7 which is high light. Fluorescent is coming off lol, and my Co2 is at 30ppm ph is 7.0 without Co2 and 6.0 with Co2..
generalzod34 is offline   Reply With Quote
Old 12-31-2017, 06:42 PM   #6 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,859
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Lighting question

Please let us know how it works out with just the one Finnex Planted Plus light.
hoppycalif is offline   Reply With Quote
Old 01-03-2018, 12:00 AM   #7 (permalink)
Junior Member
 
Join Date: Oct 2016
Posts: 12
iTrader Ratings: 0
supperfish is a regular member
Default Re: Lighting question

A 29 gallon fish tank is usually 18" high and based on the PAR values of the Finnex Planted+ 24/7, one fixture provides enough light (or more light) for even high light level plants in your tank.
supperfish is offline   Reply With Quote
Old 09-06-2019, 03:33 AM   #8 (permalink)
Junior Member
 
Join Date: Sep 2019
Posts: 1
iTrader Ratings: 0
tysonjames is a regular member
Default Re: Lighting question

I have read about the Finnex Planted Plus 24/7 LED Light. Is it really the best option to go with.
tysonjames is offline   Reply With Quote
Old 09-06-2019, 07:26 AM   #9 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,859
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Lighting question

Quote:
Originally Posted by tysonjames View Post
I have read about the Finnex Planted Plus 24/7 LED Light. Is it really the best option to go with.
Welcome to APC! There are several good LED lights available now, so I wouldn't say any of them are the "best", but many of them are good. I used a Planted + light and was very pleased with it.
hoppycalif is offline   Reply With Quote
Old 09-12-2019, 05:19 PM   #10 (permalink)
Member
 
Join Date: Sep 2019
Posts: 32
iTrader Ratings: 0
Am2020 is a regular member
Default Re: Lighting question

Not too much lighting. Better to have intense lighting but shorter photo period, than weak lighting on too long.

I'd suggest keeping the LED towards the front, for your shorter plants, and the T8's towards the back for the taller plants.

I have my old SPS reef tank diy LED lighting on my 55 without any problems. Its pumping about 250 watts of full spectrum 3 watt diodes, and I could probably add more lights if I wanted. Once the leaves break the surface that's a different story. They can't grow out of water because the lighting is so iintense.the leaves turn white and stunted.
Am2020 is offline   Reply With Quote
Reply


Aquatic Plant Central > General Interest Forums > Equipment > Lighting question


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 12:27 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.6.1